Laceration Protection Selvey OE Committee March 2014 Kevlarآ® aramid fiber, 5x stronger than steel...

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Transcript of Laceration Protection Selvey OE Committee March 2014 Kevlarآ® aramid fiber, 5x stronger than steel...

  • Laceration Prevention

    March 11, 2014

    Robert Selvey Safety & Health Services Division

    Personal Protective Equipment SME

  • Hazards that create lacerations

     Tools with sharp surfaces  Knives  Razor blade tools (paint scrappers, box

    cutter, Extacto®)  Saws

     Surfaces with sharp edges & burrs  Sheet metal with sharp, serrated edges  Metal tubing burrs  Glass edges and shards  Thin surfaces- metal, paper, plastic

    Protection by: Removal or covering sharp edges & Gloves (PPE)

  • Metal burr  A raised edge or small pieces of material remaining on a work piece.  Created after machining operations, such as grinding, drilling,

    milling, engraving or turning.  It is removed by de-burring- Manual; Electrochemical; Thermal

    energy; & Cryogenic

  • Punctures

    Some likely sources to be considered in the surveillance:

     Cut end of wire

     Broken Glass/ Plastic

     Barb Wire

     Metal tubes, wire, pipes

    Puncture PPE is different from Laceration PPE.

  • Protect sharp points Some likely controls to be considered in the surveillance:  Barriers  Covers

  • Traditional Cutting Tools What they have in common: BLADE IS EXPOSED even when it is not in

    contact with the cutting material

  • Somewhat safer Cutting Tools

    What they have in common:

    Tool has a trigger. The blade is exposed only when the trigger is engaged. But you must take pressure off the trigger for the blade to retract.

  • Better tools that Lower Risk Safety features are automatic:

    Blade self-retracts Blade is shielded when not cutting

    As blade come further out based on friction with material being cut, Clutch on blade disengages. If friction is lost, blade snaps back in.

  • Safety Level Chart for TOOLS

    5 levels of safety in tools

    Level 5

    Hazardous during: • Picking Up • Use • Storage

    Level 4

    • Safe during pickup • Hazardous during use • Safe storage

    Level 3 • Safe during picking up • Lower Hazard during use • Safe during storage

    Level 2

    No Hazard during picking up, use, or storage

    Level 5

    Manually Retractable & Fixed Blade Knifes No Safety Features

    Level 4

    Spring Loaded Retractable Blade Knifes

    Some Safety provided

    Level 3

    Smart Knifes Auto Retractable Blade Safety cannot be over-ridden under normal use

    Level 2

    Concealed Blade Safety Cutters Unexposed blade, can not be overridden under normal use

    Level 1

    Bladeless Safety Cutters No metal blades, can not be overridden under normal use

    Safest Least Safe

    Level 1

    No metal blades

  • Recommended Safety Cutters

    Several alternative style cutting devices were evaluated in 2012, including:

     Level 3: Self Retracting blade  Martego 122001  Megasafe 116006

     Level 2: Concealed blade  Combi 109137

  • Cut Resistant gloves  Meet ASTM standards  Best gloves are made of man-made

    fibers  Kevlar, Spectra, Dyneema; Steel

    Gloves that are subject to cut risk (do not meet Cut Resistant criteria)

     Cotton; Leather, Nylon

    Cut Protective Gloves

  • Cut Resistant Gloves Used for sheet metal handling and glass handling.

     Kevlar® aramid fiber, 5x stronger than steel by weight. Flame, cut, and heat-resistance.

     Spectra® polyethylene fiber that offers high cut-resistance, even when wet. Its 10X stronger than steel by weight.

     Dyneema® polyethylene fiber up to 15x stronger than quality steel by weight and up to 40% stronger than aramid fibers.

     Metal Mesh interlocked stainless steel mesh offers superior cut and puncture protection due to its strength. Poor comfort and fit. Conducts cold and heat.

    Manufacturers use ASTM F-1790 for measuring cut protection Scale 0 – 6: Level 0 (least protective) to Level 6 (most protective).

    3 - 4

    3 – 4

    3 – 4


  • Cloth gloves  Cotton or nylon

    woven fiber  Dipped fabric

    • Low cost, •Moderately durable, •Good for gripping if coated, •Poor to Fair laceration resistance •Poor for abrasion resistance •Very poor puncture resistance Scale: 0 - 1

  • Leather Gloves

     Deerskin  Pig skin  Goat skin  Horse hide  Cow hide

    •Cost more than cotton, •Fair for gripping, • Low laceration resistance Scale 0 - 1 •Very durable from abrasion, •High puncture resistant (best)

  • Cut Resistance

  • Conclusions Eliminate injuries from lacerations by:

     Removing Sharp Surfaces (deburring and covering)  Using Safer Tools that reduce the exposure to sharp blades  Wearing PPE that is cut resistant

    SURVEILLANCE Evaluate situations to determine hazards & corrective measures